Mechanism for automatic turning of irrigating pipes



April 13, 1926. 1,580,502

L.T.LAR$EN MECHANISM FOR AUTOMATIC TURNING OF IRRIGATING PIPES FiledMarch 26, 1925 fill .Mechanisms for Automatic Turning 0 Patented Apr.13, 1926.

1,580,502 PATENT OFFICE.

LAURITS THORVALD Lassen, or 'LUMBY MARK, DENMARK.

MECHANISM FOB/AUTOMATIC TURNING OF IRBIGATING PIPES.

Application filed March 2'6, 1923. Serial No. 627,904;

To all whom it may concern.-

Be it known that I, Lanarrs Tuonvann Iii-insert, a sul ject of the Kingof Denmark, residing atLumby Mark, county of Odense, and Kingdom ofDenmark, have invented certain new and useful Improvements in rigatingPipes, of whichthe following is a specification.-

In horticulture it is common to use for artificial watering orsprinkling along pipe in which a. row of small discharge holes aredrilled for the water supplied under pressure. The pipe-is supported onhorses and is continuously turned about its longi tudinal axis so as toenable it to sprinkle alternately to the right and to the left.

The present'invention relates now to a mechanism adapted to reverse suchwater pipe automatically at predetermined time intervals. 7 i

One construction of on the drawing.

Fig. l is an end view of the device, partly in section.

Fig. 2 shows the same in top view.

Fig. 3 is a side view partly in section, of certain details.

a. is a watering pipe resting on horses I) and fitted with dischargeholes t, to which the pressure water is directed by way of a hose.

On the pipe (6 there is rigidly connected a short downwardly directedbranch pipe 0 rigidly connected to the centre of a pipe (Z, the ends ofwhich carry vessels 7 and '1), each with an air hole a and two ports 0and 7) leading to slide valve boxes 6, in which slide valves n maytravel. These valves have guide rods m. connected by links I which arepivoted at to a quadrant h. The latter is pivotally mounted'on a lug 9provided at the pipe joint'betw-een the pipes 0 and d, and the quadrantsupports a bent bar a with a weight 7'. This bent bar 2' encircles thewatering pipe or and is titted, on either side, with. a tappet screw to,by means of which the rotation of the pipe a may be limited.

The apparatus acts in the following manner Supposing the apparatus to bein the position in which the vessel 1) is swung downward, then the jetholes I? will .be turned towards the left. The beat her i the inventionis shown fixed to and depending will occupy the position shown in Fig.1, and the slide valve '21 of the vessel Q) will occupy its extremeposition to the left, in which position it prevents comnumieationbetween the pipe (Z and the port 2) in the vessel o, and opens theconnection between" the other port 0 of the said vessel and a dischargehole 0' in the valve box.

In the vessel f the slide valve 91 is also in the left hand extremeposition, but there by the discharge opening 0 becomes closed, and theconnection between the pipe d and the port p is opened, so that thisvessel is slowly filled with water from the pipe at by way of the pipes0 and d.

In Fig. 1 it is assumed that the perforations t have been sprayingtoward the left and that the fluid in the vessel '0 is about halfwaydischarged while the vessel f is about half filled. It may be seen thatas the vessel f continues to fill it will move in a clockwise directionwhile will move up. As the pipe d is rigidly connected to the pipe 0, itis obvious that as the vessels move in a clockwise direction, the pipe 0will also move in a. clockwise direction and that the quadrant it willbe moving in an are about. the axis of the pipe a. Consequently theweight will be moved nearer to the vertical line passing through a andeventually the weight will drop over on the right hand" side of the pipea and this will cause shifting of the valves 'n, so that the operationwill be reversed.

The weight ensures the shifting of the valves to be performed suddenly.

Having now particularly described my invention, what I claim is 1. Incombination, a perforated water pipe mounted for oscillation, a feedpipe from the perforated pipe, a cross pipe having its intermediateportion rigidly connected to the depending pipe, a pivot pin fixed toone of the-two last mentioned pipes and spaced from the perforated pipe,a balance vessel arranged at each end of the cross pipe and adapted toreceive liquid from the latter, a valve for controlling the admission'offluid to and the discharge of fluid from each of said vessels, a membermounted on said pivot pin, rods pivotally connecting said member to saidvalves, and a counterweight connected to said member for causingactuation of the valves, the one to open and the other the vessel '0' toclosed position, after one or the other of said vessels has tipped apredetermined amount.

2. An apparatus for automatically oscillating watering pipes includingtwo vessels arranged at opposite sides of the watering pipe, across-pipe connecting the vessels rigidly to the watering pipe, valvesfor controlling the feeding of the Water troi'n the cross pipe into andout of said vessels, connecting rods pivotally connect ing said valves,a quadrant pivotally 0on nee-ted to said rods, and counterweight meansconnected to the quadrant i'or actnating the latter.

3. An apparatus for automatically oscillatingz' watering pipes includingtwo vessels arranged at op 'osite sides ot the waterii'ig pipe,aerosspipe connecting the vessels rigidly to the watering pipe, valvesfor controlling the feeding of the water from the cross pipe into andout or said vessels, :1 pivotally mounted quadrant, rods pivotailyconnected to said quadrant and to said valves, and means forautomatically swinging said quadrant after one or the other vessels hastipped a predetermined distance.

4. In combination, supporting means, a perforated pipe oscillatahle onthe supporting'n'ieans, a feed pipe rigidly connected to the perforateda strap connected to themember.

pipe to receive water from the latter, a cross pipe rigidly connected tothe feed pipe and receiving Water from the latter, a vessel'arranged ateach of the ends of the cross pipe and adapted to receive liquid -fromthe latter, a discharge port for each vessel, a. valve for controllingthe passage of water from the cross pipe into the vessel and from thevessel through the discharge port, a member pivot-ally mounted on saidpipes and arranged about midway between the ends of the cross pipe, rodsand links pivotal'ly connecting said member to the valves to cause onevalve to open "and the other to close when one or the other of said vesels tips a predetermined amount, and means for automatically swingingsaid member when one or the other vessel tips a predetermined amount.

5.1K combination as claimed in claim in which the last mentioned meansincludes a counterweight connected to said niemheiu 6. A combination asclaimed in claim at in which the last mentioned means includesadjustable stops arranged at opposite points on the strap and adapted tolimit the swinging n'iovem-ent of said in'eniher, and a conntee weighteoi'inected. to said strap.-

lniUR-ITS THORVALD LARSEU,

